oxyhacker once bubbled...
Note that Halcyon doesn't really recommend Aquaseal, but rather Seal Cement made by the Aquaseal people. This is a black neoprene wetsuit cement (and just to really confuse things, not for seals) - regular Aquaseal just isn't strong enough for this job. DUI btw recommends the same stuff for pockets, on trimlam as well as neoprene.
Also, many people use the word "epoxy" loosely to mean any two part cement, and there are many different epoxies which must be matched to the job. The person could have been referring to a two part like Bostik 2402 or one of the catalyzed two part black neoprene cements. Trying to use hardware store epoxy as a replacement would not be a good idea